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Finding the Fourth Proportional to 59,358, 89,045.76 and 17,238.40

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Solution

The fourth proportional to 59,358, 89,045.76 and 17,238.40 is: 25,860.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,358 : 89,045.76 = 17,238.40 : x
  2. Step 2: Convert to fraction form
    59,358/89,045.76 = 17,238.40/x
  3. Step 3: Cross multiply
    59,358x = 89,045.76 × 17,238.40
  4. Step 4: Simplify right side
    59,358x = 1,535,006,429.18
  5. Step 5: Solve for x
    x = 1,535,006,429.18/59,358
  6. Step 6: Final answer
    x = 25,860.14

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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.