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Finding the Fourth Proportional to 32,647.71, 45,036.65 and 19,897.80

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Solution

The fourth proportional to 32,647.71, 45,036.65 and 19,897.80 is: 27,448.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,647.71 : 45,036.65 = 19,897.80 : x
  2. Step 2: Convert to fraction form
    32,647.71/45,036.65 = 19,897.80/x
  3. Step 3: Cross multiply
    32,647.71x = 45,036.65 × 19,897.80
  4. Step 4: Simplify right side
    32,647.71x = 896,130,154.88
  5. Step 5: Solve for x
    x = 896,130,154.88/32,647.71
  6. Step 6: Final answer
    x = 27,448.48

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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.