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Finding the Fourth Proportional to 35,798.66, 49,402.40 and 21,648.76

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Solution

The fourth proportional to 35,798.66, 49,402.40 and 21,648.76 is: 29,875.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,798.66 : 49,402.40 = 21,648.76 : x
  2. Step 2: Convert to fraction form
    35,798.66/49,402.40 = 21,648.76/x
  3. Step 3: Cross multiply
    35,798.66x = 49,402.40 × 21,648.76
  4. Step 4: Simplify right side
    35,798.66x = 1,069,500,701.02
  5. Step 5: Solve for x
    x = 1,069,500,701.02/35,798.66
  6. Step 6: Final answer
    x = 29,875.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.