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Finding the Fourth Proportional to 21,354.48, 32,036.40 and 6,564.48

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Solution

The fourth proportional to 21,354.48, 32,036.40 and 6,564.48 is: 9,848.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,354.48 : 32,036.40 = 6,564.48 : x
  2. Step 2: Convert to fraction form
    21,354.48/32,036.40 = 6,564.48/x
  3. Step 3: Cross multiply
    21,354.48x = 32,036.40 × 6,564.48
  4. Step 4: Simplify right side
    21,354.48x = 210,302,307.07
  5. Step 5: Solve for x
    x = 210,302,307.07/21,354.48
  6. Step 6: Final answer
    x = 9,848.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.