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Finding the Fourth Proportional to 35,910.61, 53,868.80 and 9,615.13

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Solution

The fourth proportional to 35,910.61, 53,868.80 and 9,615.13 is: 14,423.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,910.61 : 53,868.80 = 9,615.13 : x
  2. Step 2: Convert to fraction form
    35,910.61/53,868.80 = 9,615.13/x
  3. Step 3: Cross multiply
    35,910.61x = 53,868.80 × 9,615.13
  4. Step 4: Simplify right side
    35,910.61x = 517,955,466.87
  5. Step 5: Solve for x
    x = 517,955,466.87/35,910.61
  6. Step 6: Final answer
    x = 14,423.47

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1.5x scale

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.