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Finding the Fourth Proportional to 42,618.36, 63,955.98 and 14,916.36

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Solution

The fourth proportional to 42,618.36, 63,955.98 and 14,916.36 is: 22,384.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,618.36 : 63,955.98 = 14,916.36 : x
  2. Step 2: Convert to fraction form
    42,618.36/63,955.98 = 14,916.36/x
  3. Step 3: Cross multiply
    42,618.36x = 63,955.98 × 14,916.36
  4. Step 4: Simplify right side
    42,618.36x = 953,990,421.83
  5. Step 5: Solve for x
    x = 953,990,421.83/42,618.36
  6. Step 6: Final answer
    x = 22,384.49

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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.