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Finding the Fourth Proportional to 42,636.51, 63,955.17 and 16,335

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Solution

The fourth proportional to 42,636.51, 63,955.17 and 16,335 is: 24,502.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,636.51 : 63,955.17 = 16,335 : x
  2. Step 2: Convert to fraction form
    42,636.51/63,955.17 = 16,335/x
  3. Step 3: Cross multiply
    42,636.51x = 63,955.17 × 16,335
  4. Step 4: Simplify right side
    42,636.51x = 1,044,707,701.95
  5. Step 5: Solve for x
    x = 1,044,707,701.95/42,636.51
  6. Step 6: Final answer
    x = 24,502.66

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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.