Home / 19,776.65-29,802.56-17,903.12

Finding the Fourth Proportional to 19,776.65, 29,802.56 and 17,903.12

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Solution

The fourth proportional to 19,776.65, 29,802.56 and 17,903.12 is: 26,979.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,776.65 : 29,802.56 = 17,903.12 : x
  2. Step 2: Convert to fraction form
    19,776.65/29,802.56 = 17,903.12/x
  3. Step 3: Cross multiply
    19,776.65x = 29,802.56 × 17,903.12
  4. Step 4: Simplify right side
    19,776.65x = 533,558,569.46
  5. Step 5: Solve for x
    x = 533,558,569.46/19,776.65
  6. Step 6: Final answer
    x = 26,979.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.