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Finding the Fourth Proportional to 18,195,307.22, 25,109,645.36 and 9,935,426.86

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Solution

The fourth proportional to 18,195,307.22, 25,109,645.36 and 9,935,426.86 is: 13,710,955.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,195,307.22 : 25,109,645.36 = 9,935,426.86 : x
  2. Step 2: Convert to fraction form
    18,195,307.22/25,109,645.36 = 9,935,426.86/x
  3. Step 3: Cross multiply
    18,195,307.22x = 25,109,645.36 × 9,935,426.86
  4. Step 4: Simplify right side
    18,195,307.22x = 249,475,044,779,593.03
  5. Step 5: Solve for x
    x = 249,475,044,779,593.03/18,195,307.22
  6. Step 6: Final answer
    x = 13,710,955.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.